[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"doc-seo-655257-105":3,"detail-sidebar-cat-0-en-105":81,"doc-detail-655257-en":130},{"code":4,"msg":5,"data":6},0,"ok",{"site_id":7,"language":8,"slug":9,"title":10,"keywords":11,"description":12,"schema_data":13,"social_meta":74,"head_meta":76,"extra_data":78,"updated_unix":80},105,"en","a-global-reference-guide-for-reading-schematic-diagrams","A Global Reference Guide for Reading Schematic Diagrams","","A global reference guide explaining how to recognize electrical schematic and wiring diagram symbols across different national standards. It highlights the need for consistent interpretation when products from various regions are used within one facility and introduces a cross-reference approach. Device symbol tables map components and contact types, including breakers, coils, contacts, switches, motors, indicators, meters, relays, and protective elements, drawing graphical symbols from BS, CENELEC, IEC, DIN, and NEMA references.",{"@graph":14,"@context":73},[15,34,56],{"@type":16,"itemListElement":17},"BreadcrumbList",[18,23,27,31],{"item":19,"name":20,"@type":21,"position":22},"https://docshare.wps.com","Home","ListItem",1,{"item":24,"name":25,"@type":21,"position":26},"https://docshare.wps.com/document/","Document",2,{"item":28,"name":29,"@type":21,"position":30},"https://docshare.wps.com/document/technology/","Technology",3,{"item":32,"name":10,"@type":21,"position":33},"https://docshare.wps.com/document/a-global-reference-guide-for-reading-schematic-diagrams/655257/",4,{"url":32,"name":10,"@type":35,"image":36,"author":41,"headline":10,"publisher":44,"fileFormat":47,"inLanguage":8,"description":12,"dateModified":48,"datePublished":49,"encodingFormat":47,"isAccessibleForFree":50,"interactionStatistic":51},"DigitalDocument",{"url":37,"@type":38,"width":39,"height":40},"https://docshare.wps.com/thumbnails/a-global-reference-guide-for-reading-schematic-diagrams/655257.png","ImageObject",300,407,{"name":42,"@type":43},"Hazel","Person",{"url":19,"name":45,"@type":46},"DocShare","Organization","application/pdf","2026-11-01","2026-10-25",true,{"@type":52,"interactionType":53,"userInteractionCount":55},"InteractionCounter",{"@type":54},"ViewAction",6,{"@type":57,"mainEntity":58},"FAQPage",[59,65,69],{"name":60,"@type":61,"acceptedAnswer":62},"Why is cross-referencing schematic and wiring symbols important in global facilities?","Question",{"text":63,"@type":64},"Electrical standards and symbol conventions vary by nation, so recognizing and interpreting markings correctly matters when equipment from multiple regions is used in one workplace.","Answer",{"name":66,"@type":61,"acceptedAnswer":67},"What standards were used to compile the symbol reference?",{"text":68,"@type":64},"The guide states that graphical symbols were taken from BS 3939, EEMAC E14-3, CENELEC EN 50 013, IEC 617-1 to 617-8, DIN 40700 to 40717, and NEMA ICS 1.",{"name":70,"@type":61,"acceptedAnswer":71},"How is the document organized for finding device symbols?",{"text":72,"@type":64},"It uses tables describing devices and showing the corresponding symbol grouped by areas of usage, with comparisons across US/Canadian, International/British, and German representations.","https://schema.org",{"og:url":32,"og:type":75,"og:title":10,"og:site_name":45,"og:description":12},"article",{"robots":77,"canonical":32},"index,follow",{"doc_id":79,"site_id":7},655257,1793030779,{"code":4,"msg":82,"data":83},"success",[84,88,92,96,101,104,109,114,119,122,126],{"id":22,"doc_module":4,"doc_module_name":25,"category_name":85,"show_sort_weight":86,"slug":87},"Story & Novel",90,"story-novel",{"id":26,"doc_module":4,"doc_module_name":25,"category_name":89,"show_sort_weight":90,"slug":91},"Literature",80,"literature",{"id":33,"doc_module":4,"doc_module_name":25,"category_name":93,"show_sort_weight":94,"slug":95},"Exam",70,"exam",{"id":97,"doc_module":4,"doc_module_name":25,"category_name":98,"show_sort_weight":99,"slug":100},5,"Comic",60,"comic",{"id":55,"doc_module":4,"doc_module_name":25,"category_name":29,"show_sort_weight":102,"slug":103},50,"technology",{"id":105,"doc_module":4,"doc_module_name":25,"category_name":106,"show_sort_weight":107,"slug":108},7,"Healthcare",40,"healthcare",{"id":110,"doc_module":4,"doc_module_name":25,"category_name":111,"show_sort_weight":112,"slug":113},8,"Research & Report",30,"research-report",{"id":115,"doc_module":4,"doc_module_name":25,"category_name":116,"show_sort_weight":117,"slug":118},9,"Religion & Spirituality",20,"religion-spirituality",{"id":117,"doc_module":4,"doc_module_name":25,"category_name":120,"show_sort_weight":117,"slug":121},"World Cup","world-cup",{"id":123,"doc_module":4,"doc_module_name":25,"category_name":124,"show_sort_weight":123,"slug":125},10,"Lifestyle","lifestyle",{"id":127,"doc_module":4,"doc_module_name":25,"category_name":128,"show_sort_weight":97,"slug":129},19,"General","general",{"code":4,"msg":82,"data":131},{"doc_id":79,"user_id":132,"nickname":42,"user_avatar":133,"doc_module":4,"category_id":55,"category_name":29,"doc_title":10,"doc_description":12,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":55,"is_deleted":4,"is_public":22,"is_downloadable":22,"audit_status":22,"page_count":139,"language":140,"language_code":8,"site_id":7,"html_lang":8,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":12,"update_tm":144,"read_time":145},137441390410,"https://ap-avatar.wpscdn.com/avatar/2000252f4ab5702993?_k=1776741390130283984","Product Data  \nA Global Reference Guide for Reading Schematic Diagrams  \nGeneral. With the increasing emphasis on globalization, many industries are now looking to all parts of the world to produce, market and sell their products. Electrical manufacturers are no exception. Since the electrical standards adopted by various nations may vary, the markings and symbols used to describe electrical control products can also vary. Whether it is a complex control system on a machine tool or a simple across-the-line motor starter, the need to recognize and understand these symbols becomes more important. It is possible that products from all parts of the world are being used in any one facility.  \nThe purpose of this document is to provide a simple cross-reference of common schematic/wiring diagram symbols used throughout various parts of the world. The graphical symbols were taken from the following standards:  \nBS 3939. EEMAC E14-3 .  \nCENELEC EN 50 013. IEC 617-1 to 617-8.  \nDIN 40700 to 40717. NEMA ICS 1.  \nThe following tables describe the device and show the symbol by area of usage.  \n\n| Description |  | US / Canadian | International /British | German |\n| --- | --- | --- | --- | --- |\n| Capacitor |  | | | |\n| Circuit\u003Cbr>Breaker | Magnetic Only | |  | |\n|  |  |  | |  |\n|  | Thermal\u003Cbr>magnetic | | | |\n| Coil |  | | | |\n\nProduct Data  \nA Global Reference Guide for Reading Schematic Diagrams  \n\n| Description |  | US /Canadian |  | International /British | German |\n| --- | --- | --- | --- | --- | --- |\n| Basic\u003Cbr>Contacts | Normally\u003Cbr>Closed | or\u003Cbr>|  | | |\n|  | Normally Open | or\u003Cbr>|  | | |\n| Time Delay\u003Cbr>Contacts | N. C., Timed\u003Cbr>Closed | TC | or | | |\n|  | N. C., Timed\u003Cbr>Open | TO | or | | |\n|  | N. O., Timed\u003Cbr>Closed | TC | or | | |\n|  | N. O., Timed\u003Cbr>Open | TO | or | | |\n\nProduct Data  \nA Global Reference Guide for Reading Schematic Diagrams  \n\n| Description |  | US /Canadian | International /British | German |\n| --- | --- | --- | --- | --- |\n| Disconnect\u003Cbr>Switch | Non-Fused | | \u003Cbr>| |\n|  | Fused | | | |\n| Fuse |  | | | |\n| Ground |  | | | |\n| Induction\u003Cbr>Motor | Single Phase | | \u003Cbr>M 1  | \u003Cbr>M 1  |\n|  | Three Phase | | \u003Cbr>M 3 | \u003Cbr>M 3 |\n\nProduct Data  \nA Global Reference Guide for Reading Schematic Diagrams  \n\n| Description |  | US /Canadian | International /British | German |\n| --- | --- | --- | --- | --- |\n| Lights,\u003Cbr>Indicating | Standard | \u003Cbr>Insert color code inside symbol | \u003Cbr>Insert color code next to symbol | \u003Cbr>Insert color code next to symbol |\n|  | Push-To-Test | \u003Cbr>Insert color code inside symbol |  | \u003Cbr>Insert color code next to symbol |\n| Meters |  | \u003Cbr>Insert function code inside symbol | \u003Cbr>Insert function code inside symbol | \u003Cbr>Insert function code inside symbol |\n| Overload Relay | Thermal\u003Cbr>Element | or\u003Cbr>| | |\n|  | Magnetic\u003Cbr>Element | | I  | I  |\n| Push Button | Illuminated | |  |  |\n|  | Momentary\u003Cbr>(N.C.) | | | |\n\nProduct Data  \nA Global Reference Guide for Reading Schematic Diagrams  \n\n| Description |  | US /Canadian |  |  |  |  |  |  | International /British |  | German |  |\n| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |\n| Push Button | Momentary\u003Cbr>(N.O.) | |  |  |  |  |  |  | |  | |  |\n|  | Mushroom\u003Cbr>Head (N.C.) | |  |  |  |  |  |  | |  | |  |\n|  | Mushroom\u003Cbr>Head (N.O.) | |  |  |  |  |  |  | |  | |  |\n| Resistor |  | |  |  |  |  |  |  | |  | |  |\n| Selector\u003Cbr>Switch | 2 Position | B\u003Cbr>A | | Letter\u003Cbr>Sym Position 1 2 A X B X |  |  |  |  | |  | |  |\n|  | 3 Position | \u003Cbr>1 2 3 B\u003Cbr>A |  |  |  |  |  |  | 1 2 3\u003Cbr>\u003Cbr>|  | 1 0 2\u003Cbr>|  |\n|  |  |  |  | Letter\u003Cbr>Sym | Position |  |  |  |  |  |  |  |\n|  |  |  |  |  | 1 | 2 | 3 |  |  |  |  |  |\n|  |  |  |  | A | X |  |  |  |  |  |  |  |\n|  |  |  |  | B |  |  | X |  |  |  |  |  |\n|  |  |  |  |  |  |  |  |  |  |  |  |  |\n\nProduct Data  \nA Global Reference Guide for Reading Schematic Diagrams  \n\n| Description |  | US /Canadian | International /British | German |  |\n| --- | --- | --- | --- | --","cbCaiahsSYdlTlLA","https://ap.wps.com/l/cbCaiahsSYdlTlLA","pdf",235085,14,"English","# Purpose and scope\n# Source standards\n# Device symbol tables by component type\n## Contacts and circuit elements\n## Switches, motors, and protective devices\n## Indicators and measurement devices\n## Common schematic examples","[{\"question\":\"Why is cross-referencing schematic and wiring symbols important in global facilities?\",\"answer\":\"Electrical standards and symbol conventions vary by nation, so recognizing and interpreting markings correctly matters when equipment from multiple regions is used in one workplace.\"},{\"question\":\"What standards were used to compile the symbol reference?\",\"answer\":\"The guide states that graphical symbols were taken from BS 3939, EEMAC E14-3, CENELEC EN 50 013, IEC 617-1 to 617-8, DIN 40700 to 40717, and NEMA ICS 1.\"},{\"question\":\"How is the document organized for finding device symbols?\",\"answer\":\"It uses tables describing devices and showing the corresponding symbol grouped by areas of usage, with comparisons across US/Canadian, International/British, and German representations.\"}]","A Global Reference Guide for Reading Schematic Diagrams | PDF",1792960374,35]